Paper-feeding machine.



PATENTED AUG. 28, 1906. A. BUG.' PAPER PEEDING MACHINE.

APPLIOATION FILED NOV. 10, 1905.

3 SHEETS-SHEET l.

PATENTED AUG. 28, 1906. A. BUG. PAPER PEBDING MACHINE. APPLIOATION FILED Nov.1o, 190s.

3 SHEETS-SHEET 2.

N0- 829,459. PATENTED AUG. 28, 1906. A. BUG.

PAPER `PEEDING MACHINE.

APPLICATION FILED Nov. 1o, 190s.

3 SHEETS-SHEET 3.

Wai/@5.565.

I UNITE) STATES PATENT oEEIoE. ABEL BUG, OF BERliilhlGERMANY. PAPER-FEEDING MCHINE.

No. 829,459. Specification of Letters Patent. latented Aug. 28,1906. Appleation'led November 10;'1905. Serial No. 286.702.

To all whom/1'# rim/y' concern: tion illustrating the connection oflthe feed- Be it known that I, ABEL BUG,'-a subject of ing-roller'and finger with the shaft operating the Emperor of Russia, and a resident of22 the former. Fig. 13isafragmentary top plan Teltowerstrasse, Berlin, Germany, have inview of a modified arran ement of the'feedl6c, 5 vented certain new and useful Improvements ing-rollers enablin' the ieding of sheetsof in Paper-Feeding Machines, of which the fol- 'different nature. l ig. 14 is a fragmenta vlowing is an exact s ecification. sectional side view online g g of Fig. ,13.

M v invention -re ates to a paper-feeding In the drawings, a is the side frame of the machine ofsuch kind by whichthe single feeding-machine, being connected in theex- 65 I sheets are fed ofl from a pile for stack of -ample by means of screws a to the side sheets by means of feeding-rollers in order to frame b of a printing-press, in which b re1pe conveyed to a printing-press or rulingresent-sthe printing-cylinder. Betweent e machine and the like. side frames of the feeding-machine the pile c o obtain great accuracy in feeding .and rests on a support c', which can be-raised and 7o l adjusting the sheets in the printing-press or lowered by means of a device as hereinafter ruling-machine and the like, there is the neces-J describedf The front position of the pile on sity of gripping the sheets by the fee'dingthe support c is limited'by a transverse Wall rollers always at the same dlstance from the c2, forming almost a richt angle with the Wall rfront edge of the sheet and of separating only c3, and the proper levelof the top sheet of the 75 one sheet from the pile or stack piled up in lpile is maintained by the arrangement as the machine. For this pur ose'I have inhereinafter described. vented a special feedin mec anism, accordd is a main feedin -roller which can be ing tol which feedingro lers having a friction moved to and fro `and alsolowered and raised.

covering or facing and fingers' co erate'forl The roller d (see Fi s. 8 and 4) is mounted 8o adjusting the feeding-rollersat t e proper stationary within a ow d', at the lower end distance from the front edge of the paper to 'of which fingers d2 are arranged, serving to in- `be fed off and feeding the paper to amechan'- sure the proper position of thefeeding-roller ism' transporting farther the sheets. Furon the top sheet to be fed off from the pile. thermore, I have provided a retarder or 'For operating the feeding-roller d, together 85. 3,0 separator `having a `friction covering and with the feeding-finger (Z2/the frame d is being somewhat inclined --toward 'the horimounted, by means of the rod d3 and the eye. `zontal planeA for.enabling',the' feedin -rollers d4, -on a transverse rod diymounted, by means- 'to separate the top sheet ofthe pi e, and, of rollers d, on horizontal longitudinal sideally, I have provided an `arrangement perledges d, fastened to the side frame a of the 9o gsmitting the use of the same'eedingmechanmachine: vIn order to prevent transverse ism for heavy pa ers or thin sheets. movement'of the transverse rod d5, shoulders 'In order to ma -e my invention more clear, ds are provided fixed to the rod d5. I. refer tothe accompanying drawings, `in Uponithe ledges i7 the rod al5 slides by which` means of the rollers d to and fro. For this 95 40 Figure lis a fragmentar sectional side purpose a double-armed knee-lever e e2 is 'elevationrof'lily-improved' ceding-machine provided, mounted on a transverse rod e3. on lineAAoFig. 2. Fig4 Zis afragmentary The arm eiof said lever has a bifurcation e* ont View o f the machine. Fig. 3 shows' a and engages-thereby with the rod di. The

fra mentary front elevation, in an enlarged arm e2 is provided witha roller e5, traveling on roo scae, :of the arrangement for .raising and 'the circumferential face of the camf, having `lowering the feeding-'roller and finger. Fig the form as illustrated inFig. 10 in an en- 4 isa" agmentary sectional side elevation, in larged scale and serving to move the rod d5 to an enlarged scale, on line B;B`ol`ig` 2. `Fig. and fro. The cam f is situated fixedly on Y5 is a fral mentar horizontal section online 'the governinglshaft j, mounted on the side 105 5 C5@ ,of ig.' 2, 'illustrating a detail of 'the frame a and operated by means of a chaindevice forl lifting and lowering the feeding- 'wheel e7 or the like, which receives its moveroller and"fi11ge`1.' Aigs. 6 to 9 show different ment'by a' main driving-shaft (not shown in ositions -ofthe feeding-roller and finger. -the drawingsf and connected therewith b 55 camsor operating .the feeding-roller and represented by e If the governing-shaftff er. 'FigJ'IZ is afragmentary cross-sec# 1s moved, the roller e5 travels over the-pe- .side elevation means of a driving-chain, (diagrammaticallv rio' alti ripheral face of cam f', thereby swinging the army e and moving the rod d5 to and fro. 'wo of such camel?" nand f1 are arrangedat both ends of the governing-shaft for maintaining a uniform movement of the rod d5,

'carrying the feeding-roller and finger, one of secendsectionf1 shows a circular curve, while the third section f 5 departs from the governing-shaft.4 The curve f3 begins opposite 'tothe most salient part of the circumferential face of the cam j. On the curve f3 f4 f5 a rotatable roller f6 travels temporarily, the same being secured to a dovetail-shaped slide g and movin Within a corresponding guide g, fixed to t e side frame a. To the part g a guiding-channell g2 'is fastened, in` `which operates a roller g3, 'being connected with a crank-lever g4. The latter is iiXedly mounted on the transverse rod d5.. A spring h tends to draw the .double-armed lever e e2 backward, the spring being fixed with its Aend it at a projection h2 ofthe side frame 0,. For feeding further the top sheet after the feeding-roller and linger has reached its front position presser-rollers c are provided'arranged on levers' 7c', carried by atransverse rod 'ihe lever k2, also carried by said rod c5, is

provided with a roller k3, traveling 'on aV cam' ict, mounted on the governing-shaftf and being represented in enlarged-scale in Fig. 11.

The pressure-rollers k coperate with feeding- 4 bands e, situated at vboth sides of the feedingroller 'd below the. pressure-rollers c. The feeding-bands 'i are arranged on-avrear shaft il", having a reduced middle part i2, and on a front shaft i3. For guiding the sheet fed by the feeding-band i over the table i* there are spring-mounted rollers i5 lying over the feeding-bands 'i and carried by the springing bars fia. l/Frcin thetable i4 the sheet fed off* by the vfeeding-machine reaches the cylinder b-, or thelike. i

The feeding-roller d is providedwith a friction covering or facin "m, of rubber or ether suitable material. relier d a retarder or separator m', Fig. 6, is,

Q, .frlt'iiatedv on a projection d8 of the cross-wall 33, being somewhat inclined. The fingers are lying at both sides of the separator and are not contacting the same if the'feeding-- relier is pressing upon the top/sheeti- Thev retarder m is. composed cfa band consisting cf rubber or any suitable ma tei'ial the surface of which is somewhat smoother than that of the feeding-roller d, or, in other words, the

cecflicient of friction of the feeding-roller d has EJ: a greater value than that of the retarder'm.

elow thefeeding-- The operation of the parts as now deshown in Fig. 6, according to which the top sheet m2 is slid in its highest position on the the inclination of the retarder. This position can be imparted to the sheet either by hand.

Figli-thatis to say, the finger res'ts upon.

the top sheet, while the feeding-roller d is free therefrom. .In traveling over the circumferential face the rollers e5 will reach the most salient part E of said cams, thereby moving or advancing the transverse rod d5, the finger, and feeding-roller, respectively, into the 'position of the Fig. 8. During a part lof the travel of the rollers e5 from E to E the top sheet will be in rest because the feedingro ler d is lnotin contact with the top sheet m2. lf, however, the finger, reaches the front edGe m3 of the top sheet with its rear edge, it will fall down from it and the feedin -roler d rests in a distinct distance from te front edge 'm3 upon the top sheet m2. Owin to the arran ement of the linger, thefeeding roller d wi l have always the same position on from the front e ge of the sheet, determined by the horizontal distance F of the rear edge of the finger from the axes of the feeding-l roller d, Wherever .the topsheet is lying on thev separator m. The moment of'falling down of the finger from the top sheet is repscribed is the following: Supposing that sev. eral sheets of the pile c have the position as,

separator m', while the subsequent sheets are lying successively backward on m', owing to,

the top sheet, res ectively the same distance" IOO resented in Fig. 7. While the vrollers e5 are travelinfarther on the cam f to the point E (see ig. 10) vthefeeding-roller has separated the top sheet from the sheetslying underneath, and there i's the possibility of taking along thisA top sheet b means of the feeding-roller, because the acing of the latter produces a greater friction on the top sheet and the .to sheet, While the sheets lying un- 'movement by the rough covering'ofthe sep-v arator m',- prod'ucin a friction greater than that between two su sequent sheets. In or- -der to avoid'that4 the fingers d2 are hindered from their forward movement by the feedingfshaft i', the latter is rovidi'ed with/a reduced xpart i2, as shown in ig. 2. Ifthe feedingshown in Fig. S, the top sheet is moved betilven the resser-rollers 1c and the feedings a i farther by the feeding-band i, arranged on the rear feeding-shaft c and the front feedingthan that existing between' the separator m.

derneath t e top sheet are prevented from v roller d has reached itsffront position, asv

p t this moment the pi esser-roller. is lowered-to press on the sheet to be moved' IIO lio

` groove n, thereby shaft i3 being rotated in any suitable manner. At the same time if the pressure-roller 7c is pressing upon the .topsheet m2 the feedingroller and the finger is raised by means of the arrangementas Aillustrated in Figs. 3, 4, and 5 in details. After its rotation in the direction of the arrow, as indicated in Fi 10, the curve f comes in contact with the rol er f and the part g, together with the guiding-channel g2, is raised, while the the curve f3, thereby swinging the cranklever g4 and rotating the rod d5, and because there is the arrangement as illustrated in Fig. 12 the feeding-roller d and the finger d2 `are lifted in the position as indicated in Fig. 9, provided with a groove n, into` The rod d5 is which asetting-screw n projects with its point. By the rotation o f the rod d5 in the direction of the'arrow (see Fig. 12) the setting-screw pushes against the edge n3 of the with the finger d2 and the feedin -roller d in connection therewith. Owing to'tIiis arrangement a rigid connection of the rod d5 and the fingersis avoided, so that the feeding power of the machine depends only on the angle under which the rod d3 is inclined toward the sheet to be fed and on the wei ht of the feeding-roller. When `the feeding-roer d and the fingers are lifted and the roller f s has reached the curve f4, the roller e5 is in contact with the point E2 of the camf, (see Fi 10,) and .by running over the part E2 Eiwit e rollere5 is lowered, thereby permitting the spring h to draw back the leverfe, the rod d5, respectively, the feeding-roller and the finger are .also moved backward.

roller f travels on the concentric curve f4, thereby preventing the feeding-roller from lowering. When the roller the curve f5, it is permitted to lower itself, whereby the finger is now placed on the subsequent top sheet, as indicated in Fi 6. The manipulation of the linger and the Feeding-roller is now effected again as before. It may be noted the finger consists of metal and its sliding face is polished. The feeding Ipower exerted between the feeding-roller and y 'the top sheet depends onthe inclination of 2 the rod d,

and it will be increased if the an.- 'gle between the top sheet and the rod d3 is mounted a small distance from the sheet, thereby resulting 'a small angle between the rod d3 and thetop sheet. For lifting and nlowering the support of the pile in order to maintain the top sheets always in a proper position to the feeding-roller andthe separator the arrangement is provided, forming, however, no part' of my invention, according to which the support c y suspended from the s of t side frames a by mean or any other suitable means, at the support c.

in wire ropes g fixed to eyes g The wire ropes 1 run over roller f is traveling on l'wheel and the drum lifting the stem d3, togetherwhereby At the same time whileV -the feeding-.roller is moved backward the .f8 travels over.

rollers a, and are fixed to adrum g3, rotatably carl-- g2, suitably mounted at the side frames ried` by bearings at the side frames a. On l nected at its other end to a rod s of an eccentric s', arranged on a shaft s3, driven in any suitable manner. If the' shaft e? rotates, the double-armed lever r2 13 is moved, thereby causing the pawl 1" to operate the ratchetg3, wherebyfthe support c -is lifted. from releasing the tooth of the ratchet-wheel if the arm r2 of the lever is moved to the lefthand side. (See Fig. 1.)

In order to feed sheets of different nature, I have provided a the feeding mechanism. Instead Iof y using one excessively-broad feeding-roller I use two A' spring 1'* prevents the pawl r' modified arrangement of A feeding-rollers arranged at both sides of the i middle axis of the machine,- and in alinement with the same I have arranged a special retarding or separating device, which is illustrated in Figs. 13 and 14..- d d designate again the feeding-rollers, beingin connection by means ofthe rod d3 Withthe transverse rodd, operated therefromin the manner as described before. m represetsthe former retarders, having a friction covering or facing, as before described. Between the twofeeding-rollers a 'separating-roller 'o is sit uated, mounted ou the rod d5 in the same manner as the feeding-rollers d. This separating-roller consists of metal and is provided with a smooth surface and is permitted to be rotated in thebow o. At the sleeve o2 IOO of the separating-roller an arm o3 is arranged,

carrying a counterbalance 04, which can be adjusted by means of the screw o5 on the,

arm. The connection of the sleeve ozwith the transverse rod is formed in the same manner as illustrated in Fig. 12. Underneath the separating-roller o a third retarder or a separator p is situated, having also a frictioncoverin the coefficient of friction of which IIO is less t an that of the separators mm and the feeding-rollers d. The operation of this device as at present described is the. following: supposing that sheets are to be fed off consisting of heavy paper the separation of the large, or it will be diminished if the rod (Z5 is l top sheet from that lying underneath requiring much friction. In this case the required friction is produced by adjusting tbe counterbalance o4 on the arm o3 near to the transverse rod d5, whereby the separating-roller o is caused to, press strongly upon 4the -top sheet, so that the sheets lying underneath the top sheet are prevented from being moved by the friction existing between the separator p and the sheets'while the top sheet is advanced, owing to the friction between the feeding-rollers d and the to sheet. The lift- -ing and returning of the ceding-rollers d d IISl IOl

'and the separating-roller o is carriedl out into effect in the same manner as described in case of one feeding-roller. lIn order to feed off thin sheets, a small friction is necessary for retarding, respectively separating the sheets from the top sheet. In thislcase I have only necessary to set the counterbalf ance o"1 on the arm o3 away'rom the rod d5, thereby diminishing the pressure of the sepa- 4rating-roller -o Whenfplaced on the topsheet.

Having thus fully described the nature of myl invention, what I desire to secure by Letv tersV Patent of the'United States is 1-. 'In' a paper-feeding machine in combination a non-rotating ,feeding-roller, a finger,

the rear edge ofwhich is a certain distance from the axis of the roller to cause thefeeding-roller to attack the top sheet always at the same distance from the front edge of the.

top sheet when the finger is fallen down from the top sheet, a separator, means for operating said feeding-roller and finger, a support for the sheets, and means for adjusting said support to maintain the top sheet at the' `proper level, substantially as described.I

y I A2. 'In a paper-feeding machine in combina- .tion non-rotating feeding-rollers, fingers car- .rying said' feeding-rollers, a separating-roller of-metal, .having a smooth surface and capableof being rotated, separators arranged underneath the feeding-rollers and the separatin -ro1ler, means :for operatingsaidfeedingro ers, fingersand 'the separating-roller, a

supportfor lthe sheets, and means for adjust` ing said sup ort to maintain :the top sheet in.`

the proper evel, lsubstantially as described.

-3. In apaper-feeding machine in combination non-rotating feeding-rollers provided Wtha-hiOtiOncQVering, fingers carrying said feedingrollers, a 'separating-roller of metal, having agsmooth surface and capable of being rotated, se' a rators arranged underneath the g -feedingro ers and-the separating;roller,.'the separator lying? underneath lthe' separatmgroller having a friction covering, the coef! 45 cient of friction of which is somewhat less than that of the feeding-rollers, means for operating saidrollers, fingers and separating-4 roller, a support for the sheets, and means for adjusting said support, substantially as described.

4. Ina paper-feeding machine, in combi- A nation a non-rotating feeding-roller, a linger carrying said feeding-roller and maintaining the proper position ofA said feeding-roller on the top sheet, a separator, a governing-shaft,

cams mountedon said governing-shaft, double-armed levers operated by said cams for moving to and fro the feeding-rollerand the finger, a crank-lever, a roller carried by said crank-lever, a guiding-channel in which the aforementioned roller travels, a dovetailed guiding-piece carrying said guiding-channel,

a roller fixed to said dovetailed guiding-piece,

`ausupport for the sheets, and means lfor ad-y substantially as dejustin g said support, scribed.

5. In a paper-feeding machine in combinav tion non rotating feeding roller provided with/friction coverings, fingers carrying said feeding-rollers on the top sheet, a separatingroller of metal, having a smooth'surface and capable of beingrotated, `separators arranged underneath the feeding-rollers and the'sepanuaA Witnesses HENRY HAsPER,... WOLDEMAR .HAUrr 

